I see a lot of you are saying Harvest Moon/Story of Seasons and Stardew Valley and I raise you Farm Together. I was so skeptical about it but its so worth $20. There's an infinite amount of things to do and you get a huge, ever expanding farm with crops, animals, trees, etc. You can even make a house that has full customization. I've been playing it non stop and I really think its going to hold me over until Animal Crossing. There's a ton of things to unlock and level up, and has cooking, painting, etc. You can have up to 8 people join you on your farm and you level up your character to unlock customization. I could go on for this for hours, look up some reviews on it, they're all overwhelmingly positive. There's no stress of animals starving if you don't feed them or crops dying if you don't water/harvest them. It's so relaxing and I can pick it up all throughout the day.
If anyone has it for the switch, let me know so we can play together! It's also available for Xbox One and PC but I don't believe they're cross compatible yet.